The Catholics in Texas are Latino. Yes, that is not a good trend.
Conservative church-going Catholics are a growing, and influential demographic. That is a very good trend.
When you have two trends going in opposite directions, voting data is not telling you anything.
There is no meaningful trend that is going to change the Catholic vote, it will remain a denomination that votes democrat.
It always has and always will, as I posted earlier, we will be lucky to get a couple of more republican presidential votes to join the 4 or 5 other ones in history, but that is it, the Catholic vote will remain democrat.