You, of course.
But you
don't accept them all.
If you accepted Christianity, you'd be Christian, not Baha'i. If you accepted Islam, you'd be Muslim, not Baha'i.
Your religion is just another division. Your rhetoric about "accepting them all" is just a marketing ploy to make proselytizing to members of other religions a bit easier.
The Christians co-opted Judaism, took elements of it, and created a new religion.
The Muslims co-opted Judaism and Christianity, took elements of them, and created a new religion.
The Baha'i faith is just the latest example of this trend. Your particular brand of religious sectarianism is no less divisive than any of the others.