And was expressly written to prevent the federal government from interfering with state established religions
Bullshit.
A state religion (also called an
established religion or
official religion) is a
religious body or
creed officially endorsed by the
state. A state with an official religion, while not
secular, is not necessarily a
theocracy, a country whose rulers have both secular and spiritual authority. State religions are official or government-sanctioned establishments of a religion, but the state does not need be under the control of the religion (as in a theocracy) nor is the state-sanctioned religion necessarily under the control of the state.
The first amendment to the US Constitution states "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof." The two parts, known as the "establishment clause" and the "free exercise clause" respectively, form the textual basis for the Supreme Court's interpretations of the "separation of church and state" doctrine.[40] Three central concepts were derived from the 1st Amendment which became America's doctrine for church-state separation: no coercion in religious matters, no expectation to support a religion against one's will, and religious liberty encompasses all religions. In sum, citizens are free to embrace or reject a faith, any support for religion - financial or physical - must be voluntary, and all religions are equal in the eyes of the law with no special preference or favoritism.
Half of the states had established religions at the time the constitution was ratified.
It's the reason why Madison's attempt to include this restriction on states failed in the senate.
Lastly, why do you think Blaine tried to include states in the establishment clause if states were already included in the establishment clause?
The 14th Amendment and the Bill of Rights | | Tenth Amendment Center
The Blaine Amendment
We know from the opening line of the First Amendment (“Congress shall make no law”) that the Amendment applied only to the federal government. It is a fact of history that James Madison’s proposal in 1789 to extend to the states the freedom of speech and of the press was rejected by the Congress that gave us the Bill of Rights. When the Constitution refers to the states it clearly says so. For example, it says in Article I, sec. 9 of the Constitution that “no Bill of Attainder or ex post facto Law shall be passed.” That this only applies to the federal government is evident because in the next section it prohibits states from passing “any Bill of Attainder” or “ex post facto law.”
This view of the Constitution prevailed even after the addition of the Fourteenth Amendment to the Constitution. In 1875, which was several years after the adoption of the Fourteenth Amendment, an amendment to the Constitution was proposed in the House of Representatives by
James G. Blaine (1830—1893), the speaker of the House from 1869 to 1875. Known as the
Blaine Amendment, it reads:
No State shall make any law respecting an establishment of religion, or prohibiting the free exercise thereof; and no money raised by taxation in any State for the support of public schools, or derived from any public fund therefore, nor any public lands devoted thereto, shall ever be under the control of any religious sect; nor shall any money so raised or lands so devoted be divided between religious sects or denominations.
The Blaine Amendment passed in the House but not in the Senate so it was never sent to the states for ratification. The purpose of the amendment — to keep Catholic schools from receiving state funds — is irrelevant. What is relevant is the opening phrase, which should be compared with the opening phrase of the
First Amendment:
No state shall make any law respecting an establishment of religion, or prohibiting the free exercise thereof;
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof;
The wording of Blaine Amendment shows that the Congress at the time did not consider the First Amendment to be incorporated into the Fourteenth Amendment. And if that bulwark of the Bill of Rights — the First Amendment — was not incorporated into Fourteenth Amendment, then neither was the Fifth Amendment or any of the others in the Bill of Rights. And such was the case until late into the nineteenth century.