Basically. It's really ironic when you think about it though.
Latinos don't vote for Democrats as much as Blacks, but it's still in that 60/40 to 70/30 range (usually). They want to "defend" the border to look tough for white voters but would prefer the central Americans to come across and work all the 'catch-out' jobs in construction/landscaping etc. Hell Rick Perry had an illegal working in the Governor's Mansion back when he was in office. However, by looking tough for white voters....they are increasing the odds that all the illegals hopping across will have anchor babies that will eventually become outspoken Democrats.
See it on the news once a month. Some Latino born to undocumented parents...works hard...goes to UT and becomes some outspoken young politician that wants to make a difference (i.e., support liberal policy). The only reason Texas is still a red-state is that Latinos don't vote in heavy enough numbers relative to their population here. If they did, it would be all over.
It's the long-term problem for conservatives. They can't really increase their base which is why Trump is stacking the courts with conservative justices and they're trying to find every way possible to disenfranchise voters of color. It's also why they still support the electoral college. The ability to win the popular vote will get harder and harder for the GOP. If this was about 'one-man, one-vote,' the Dems could campaign in all the big cities and win easily. GOP would have to fly to every single rural spot in America (spending lots of money in the process) just to get equal turnout.