And there's nothing you can do about it. Just like what Twice, BPink and RV did to their predecessors, it is occurring to them. That is the circle of life. Aespa is at a trendy stage now. I wouldn't call them "national group". They are obviously popular with the youths but the majority Korean public hasn't give their official seal of approval yet, like they did to SNSD all those many years ago.
I give this advice often, but to repeat again, enjoy the last or last 2 years of your Gen 3 biases. Look forward to your biases finding happiness in their next stage in their careers and lives.