does any girls in our community is interested in marriage?? or we all gonna extinct like jews!!

i mean common

Have you tried the "Search" feature here ? Using "advanced search" I was able to find many women in your area (at least 2 in your age range, many older) who list themselves as non-religious or atheist. However most profiles are not as filled-out as yours and almost none of them have been online recently. I'm sure you will find many from around the world, though.

I am wondering, since getting married is a religious idea, and supported by the government by giving benefits, do we also get married or is it more of just living together as a 2 some?

There are non-religious, non-tax reasons to marry, especially if children will be involved. The legal framework can be useful,

A woman who worked for my wife was in a Lesbian domestic relationship where she and her partner adopted a child and she did not pursue a more advanced career so she could be the primary homemaker. Ultimately, her partner decided to end their relationship (decided she was now straight) and, because everything was in her name, she was able to kick the other out. There was nothing she could do legally. This was in Texas before the Supreme Court's ruling on same sex marriage. Marriage would have protected my wife's employee from this obvious abuse.