I don't care what you believe as long as you can reconcile the existence of CMB with it. I've done that.If you want me to say that the universe came from a sort of vacuum fluctuation with some small asymmetric property of matter/antimatter. Sure that's the best bet, but I neither believe it nor disbelieve it. But when you disagree with some basic physics like the thermal nature of the CMB I pursued that to see if you clearly knew what the physics is.
Like I said before there are only two options; the universe began or the universe always existed. Despite your objections, the universe always existing violate the SLoT, so that can be ruled out.
So for the case of the universe began there are also only two options; it was created from existing matter or it was created from nothing. Of these two options we can eliminate the universe being created from existing matter because under that scenario there is no mechanism (i.e. no paired production) to create the background radiation which is massive to say the least; two billion times more matter went into creating the CMB than the remaining matter in the universe.
I wasn't insulting you. I truly believe you don't understand the CMB or how it came to be or its significance in answering the origin questions.