Signing a petition is public, who you cast your vote for is private.

If there were any doubts on the signatures, officials can contact the people who signed and verify that they did sign. How do you verify a secret vote without ruining the secrecy?

I mean you can have online voting if you cast a ballot thats public, and it’d be verifiable, but then we go back to the 1800s in the US where threatening voters is a thing.

You have 3 elements:

1: Internet voting

2: Secrecy

3: Verifiable

Pick 2.