Yes. I am ok if homeless people find it difficult or impossible to vote.
If you are not capable of functioning minimally in society, I really don’t trust your judgment when trying to contribute to a positive societal outcome via voting.
As a citizen, you have the right to vote, providing you can meet minimal requirements. If you can’t meet them, then maybe focus on fixing your own problems before voting.
But it's okay, because they just need to "fix their own problems first" as you put it in such a blasé fashion.
When I was working as an archaeologist, I often lacked a residential address. I had a stable job, supported local communities, and generally met residency requirements, but establishing that in the normal ways was impossible. I've also had at least one ballot rejected as a result of similar clerical issues.
It's often helpful to be a bit more open-minded about how different other people's lives can be to your own.
Homelessness is a state, not a capability. The majority of homeless people exist in this state only temporarily (eg, victims of domestic violence who flee their abusers)