Any filter immediately becomes a tool to limit the number of voters for the opposition.
We already have arguments over what should be considered a felony , gerrymandering county lines, etc.
Seems like requiring a certain level of education would just incentivize more attacks on public education
No, but we should require proof that you _are_ a citizen. And no, a flimsy attestation that certain groups fight tooth and nail against periodic verification of (see the arguments that come up every time the voter rolls need to be purged of the dead, people who’ve moved, or to ensure that no one lied about their citizenship status) isn’t a good solution.
I mean it would be a huge undertaking etc etc, but there's people and state actors with infinite means to do so.
In an ideal world, anyone who would be affected by a policy (directly or indirectly) should be allowed to have a say in the policy.
Citizenship seems to be a "good enough" bar for letting people in this country vote on matters of this country.
And as I pointed out, any filter, including citizenship, is turned into a way remove voters who should otherwise have a say.