This may not be the intent of some conservative voters, partly because some are plausibly immigration friendly, partly because many movement conservatives have more of a opinion-vibe than a policy position on immigration (among other things).
But conservative voters that don’t want much immigration at all (especially from some places/backgrounds) absolutely exist, and more to the point so does leadership that’s determining policy with that goal in mind.
Perhaps you and your circle reflect the more egalitarian policy-driven view. Commendable if so. But it’s not commendable to deny that conservatism has a xenophobic streak a mile wide right now.