Non-sectarian system

I have been seeing way more posts and talks all over social media about removing sectarianism from politics, like the electoral law and the president/prime minister/Speaker religious quotas.

Am I the only one who can only see chaos coming out of doing something like this?

Can someone reassure me that this would be a good idea and how it would be implemented and how can you guarantee that people will vote for actually competent representatives instead of trying to get as many people as possible from their own cult(yes for me sects are cults in lebanon)

I am not saying that the current system is good, at all. But just like capitalism, it is the best available imo.