Antis are really dumb. Lets make something clear. Musicality speaking their only similarity is the "GC concept", nothing more, they literally target different audiences and their whole market/ideas are different. None of Aespa releases are what BLACKPINK would release. Period? Period.
Now we should go to the real similarities that you guys may see, but are dumb enough to notice bc you guys are aiming at the wrong thing.
They have luxury vibes/aura. They somehow resemble each others as rich girls, pretty girls, confident girls. In this way they are marketed alike, but this isn't copying BP, this is a strategy using the girls beauty and strong aura to make money and being fashionistas. BLACKPINK matched this whole luxury thing soooo much that it seems they were born to it so does Aespa. Both groups are perfect to the fashion world and actually even their similarities surprises me honestly.
As a lot of people says BP has 4 individuals with totally different beauty and the same goes to Aespa. They are all so different from each other that it's honestly cool.
We have the duos
Jisoo/Jennie and Karina/Winter
Rosé/Lisa and NingNing/Giselle
Anyways, I think their luxurious and rich image is what makes them "similar", but not a copy neither nothing. Just similar which is soooo common in kpop tbh. Even BP reminds me of others older gen groups/idols at some point.
This is my opinion after all these threads about both groups and seeing trolls and antis being loud about nothing, just jealous blindness.
Anyways go stream Next Level everyone 
