> yet the majority of the immigrants to Texas were Protestant
Austin Colony was founded by the 300.
The "Old Three Hundred" were 297 grantees who purchased 307 parcels of land from Stephen Fuller Austin in Mexican Texas. Each grantee was head of a household, or, in some cases, a partnership of unmarried men. Austin was an American approved in 1822 by Mexico as an empresario for this effort, after the nation had gained independence from Spain. By 1825 the colony had a population of 1,790, including 443 enslaved African Americans.[1] Because the Americans believed they needed enslaved workers, Austin negotiated with the Mexican government to gain approval, as the new nation was opposed to slavery. Mexico abolished it in 1837.
Stephen F. Austin agreed to carry out his father's plan for a colony. At the end of the summer of 1821, he and a small group of Anglo-American settlers crossed into Texas. Before he reached San Antonio to meet with the governor, the group learned that Mexico had gained its independence from Spain. Texas was now a Mexican province rather than a Spanish one. Governor Martinez assured Austin that the new Mexican government would honor the colonization contract.[3]
Austin returned to Louisiana to recruit settlers. He offered land at 12 cents per acre, which was 10% of what comparable acreage sold for in the United States. The Settlers were required to satisfy four regulations:
They had to be Catholic,
They had to be of good moral character,
They had to improve the land (usually by adding structures), and
They had to cultivate the land within two years, or forfeit it.
Settlers would pay no customs duties for seven years and would not be subject to taxation for ten years. In return, they were expected to become Mexican citizens.[4]
https://en.wikipedia.org/wiki/Old_Three_Hundred
Texas is a Roman Catholic Republic, not an American Republic.