> Why do you want to keep people from spedific religions stick together? It's for a society always better if groups mix instead of this ghettoization. I know that still many try to stay with their folks which is ok but why to enforce it?

They are not forcing anyone to do anything. They are giving people an option.

If a Muslim wants to marry another Muslim, and this helps them accomplish that better than Tinder or any other apps, that's great. Why is that such a problem for you? Why do you even suppose it's any of your business?

Full disclosure: I am agnostic.