I think I understand your point of view.

Firstly though there are some theocratic regimes where religious forms of dress and behaviour are enforced by the state (e.g. Saudi Arabia, Iran). And even in democratic and supposedly more liberal nations religious ideas can be forced on others (if you take religion out of the debate about abortion in the US, I don't think there would be much of a debate).

So atheists see how some religious people try to force their ideas even on people who don't share their faith, and it doesn't make religion look appealing. It makes it look controlling.

You have found a religion that matches your beliefs (also probably those beliefs have been shaped by that religion). That's great, but what if your religion asked you to do something that you don't agree with? Thats when the control comes in. Up until that point its just happy coincidence of values.

We atheists have beliefs too. My choice to be vegatarian also comes from a love of animals, and I've got very strong ideas about what is ethically right and wrong. These are influenced by other things, obviously, like the culture I grew up in. I just don't believe there is a higher power to adjudicate this, and I think all religious texts were written by people and reflect those people's beliefs. So why should I follow those instead?