I'm getting sick of being told that. I was told this on gaming boards when I compared ACNL to ACHHD and ACaF to ACCF. They were trying to tell me that they don't compare, but I still choose to compare them because they're still Animal Crossing games. I don't care how different the gameplay is. They're still in the same franchise.
I know it doesn't sound like that healthcare and border wall compare, but they're still both political actions. I was trying to point out how much cheaper the wall is opposed to government-funded programs for individuals. Not only that, but by even spending on health insurance for many, they're still not guaranteed healthcare. Doctors are very unlikely to accept patients that have insurance that does not pay well (for example, Medicaid). Without insurance, they couldn't get healthcare because they are poor. With this kind of insurance, they wouldn't get healthcare because they wouldn't pay well, as they underestimate the costs of labor. This is a lose-lose situation, yet it would be worse to have socialized medicine since it wastes more money.
Socialized medicine is not just expensive, but it's also making healthcare harder to get. In places like Canada and UK, doctors have a maximum wage. That means after operating on a certain number of patients, they reach the salary cap. At this case, they would not get paid anymore no matter how much they work. So they stop working after they reach the cap. This creates healthcare waiting times, which is bad for those who need healthcare desperately. When I was assigned surgeries (where I undergo surgery), I get mine in less than a month. In places with universal healthcare, you may have to wait up to two years (or even longer) to get the surgery you were assigned. I know this doesn't happen in the United States, but that's because we were paying doctors by patient rather than maximum wage. As much as it's good to care for those who are poor, we should also care about those who provide healthcare.
So socialized medicine is not just more expensive than building a wall, but it's also not cost-effective. Would you rather not spend on something, or would you rather spend millions just to get very little output?