I mean obviously “Taxation without Representation” is one of the foundational injustices which led to the declaration of independence, so I’m in favor for letting non-citizen residents vote. But if the state constitution says voting is only for citizens then maybe the state constitution needs to be amended…

A few states do have provisions for letting non-citizens vote in local elections: https://ballotpedia.org/Laws_permitting_noncitizens_to_vote_in_the_United_States