Next comes depression. The time on this varies; it really depends on how quickly you assess the situation. Last is acceptance - the knowledge that the process was initiated long before many were born. The fix was in from at least 1965 immigration act. It's why the GOP joined the progs in supporting illegals - they knew the inside line.
That the fix has been in for a long time also explains why the GOP views normal people with such disdain. I sort of agree that once you see clueless Trump supporters at his rallies, one can begin to view them as marks ripe for the plucking. It's also why the uniparty thinks Trump is declasse; he knows the score, but gets to satisfy his ego by appealing to the last remnant.
If your current situation were fixable, the Romans would have been able to pull it off 1,600 years ago. They failed for the same reasons the USA will fail: by the time anyone can see the effect of migration, it's already too late to stop the demographic wave.
Not really worried about being in the minority per se. It doesn't take many smart determined people to take back what they lost. That's what I'm preparing my kids for.