I feel like hyper partisan politics of the US at least could've been avoided if we just had online voting. Instead I have to worry if democracy will be superseded by a one party state or possibly the country splitting into two.
Other countries with more proportional voting systems don't have the "too big to fail", two-party duopoly that the US has. Allowing online voting just means handing control of elections to whoever is in control of the servers (which in many cases will be the same people who are gerrymandering the districts and closing down polling places).
So everyone can prove to the person who bribed or threatened them that they voted how they were told to?
If you do want to vote illegally for someone else or several someone's which multiple people mostly republican did in the last go round the proof will be mailed to the criminal solving nothing.
This solves no real problems and introduces plenty. It's a terrible idea.
If you look at how the state of Washington does it they mail a ballot to every registered voters address as long as you keep returning them. You register by checking a box when you get or renew your ID and you drop the finished ballot either in the mail or in one of the many ballot drop boxes. You normally have WEEKS to fill it out before its due.
Would it really be an improvement to count the votes of folks so disconnected they couldn't check a box walk 50 ft to the mail box?
Sarcasm aside, online voting can't really be recounted or audited. Vote by mail states like CO did risk limiting audits to increase confidence that tabulations are correct. It isn't out of the question that rolling over a carry digit fails. It's very low probability, but it could happen. Without a risk limiting audit, you just won't know
There's a lot of material on this topic from the 200x's, the... unusual... 2000 and 2004 presidential elections caused a lot of examination of voting systems and procedures. Internet voting, as it was called back then, was proposed and scrutinized closely, and found lacking.
They do that, that's what the recounts and all the audits you hear in the news is all about.
Hyper partisan politics have nothing to do with the logistics of the election process. The accusations of fraud are the result of the hyper partisan politics, they are not actually the result of an insecure system.
Elections are supposed to be anonymous.