Not so. One colony (Maryland) was founded as a refuge for Catholics. Charles Carroll invested his personal fortune in the American Revolution and was the only Catholic signor of the Declaration of Independence and the longest surviving signor.
His co-religionists were not a few of the Maryland militia.
Nearly all my bloodline is Irish Catholic. My granny is a bit of a 'mongrel' and has Mayflower ancestry.
I'm often at odds whether I should assist Rome taking over the world or burning a cross whilst wearing a white sheet over my head.