Mail voting is not secure and you’re not being honest if you say it is. you’re also not being honest, if you conflate absentee with mail voting, where the stark difference is that one is requested in the other one is disseminated en mass. Also states like California require a new voter ID to confirm who you are so yeah, you can vote as your relative who has dementia and doesn’t show up. people act like cheating in elections pretty hard it’s actually pretty simple. It just requires organization do it at a large scale.