I don't see Cruz even considering such a thing. The poster you quoted is an idiot.
Well, it does seem unlikely Cruz would go that way to me, too. I guess we'll see as this progresses along its crazy way, as it is doing even today. I can't see how this is constitutional, and Justice Roberts agrees with that, I see from the paper today. But whether something is constitutional no longer matters, as we have seen with all the oppressive COVID rules.
Correct. The Nazis just impeached a US President for exercising his first amendment rights.
Nope. The 1st amendment right of freedom of speech bars congress from making a law that would limit such. However, that does not mean that a person can say whatever they chose and be immune from the legal consequences due to such speech, for example inciting insurrection or rioting or damages to property or persons due exercising those rights.
Also keep mind, articles of impeachment are not a criminal charge but a pollical charge that the office holder is not fit to hold office. The FBI is looking at the attack on the capitol to determine who will face criminal charges which could go much higher up than just those that broke into the capitol.
This entire thread is rather meaningless since there is essential no way 17 republicans are going to vote to convict. However, keep in mind this is a pollical process, not a legal process. Senate democrats will carry through with a trial for two reasons. First being it is their responsible to do so. Second, it lays out the entire case by both the prosecution and defense for the voters to deicide on whether Trump should be given a second go at the white house.