Providing a socialized system with adequate funding requires elected officials and voters to have appropriate and matched priorities. Voters, regardless of party in Canada for example, generally all agree that the socialized healthcare system needs more funding and to be a higher priority. I understand that when you remove party affiliation from the prompt a majority of Americans are also generally in favor of socialized healthcare and would like to see it expanded.

Critics of socialized healthcare often point at things like waiting too long for specialists, or understaffed hospitals, presenting them as inherent to socialized medicine itself when it's more often the product of elected officials who simply don't think socialized healthcare deserves adequate funding, or are against the idea of socialized healthcare entirely. Politicians will often piss in your cup and insist to you it's champagne.

There is, of course, the economic arguments around public vs. private health-care systems; but there are also the philosophical, moral, and ethical, arguments regardless of economics. Some things are expensive and yet we still understand they are a good and humane thing to do.