Regarding White Hispanics, I would say the Hispanos - the direct descendants of Spanish colonists in the Southwest who became Tejanos, Neomexicanos, and Californios - are the most fully integrated and Americanized, having dealt with enough of them from personal experience (one was lily white, spoke no Spanish, and loved baseball. How ‘Murrica can you get?). They also have the excuse, like the Creoles and Cajuns of southern Louisiana, of being annexed to the Union without a say in it so I am willing to give them that grace. Cubans in southern Florida from what I hear are also quite Americanized, patriotic, and probably just happy to see their homeland free from communism someday at this rate. They are also fine. Puerto Ricans, I don’t know enough yet to say.
It’s the rest of the massive LatAm migration to deal with, with White ones joining the above groups as likely being the 20th-21st century equivalent of the Italians and Irish Catholics into becoming White in all but surnames in terms of culture, and the rest too ethnoculturally different to bother integrating. That and a hopeful uptick of Non-Hispanic White births and numbers will hopefully see it become just “White” combined in the coming decades and back to the 80-85%-ish amount it should be in the country.
Once again my faith and optimism speaking there, so pop me the rainbows if you think I earned them.