>>Systems like these can be susceptible to abuse and this should be researched and prevented as much as possible
This is good in theory but very difficult to implement effectively. The conservatives take an extreme condescending view of social welfare and demand extreme checks on it whereas any checks and balances for abuse is what is attacked by many liberals/leftists.
That's where immigration is playing a destructive force. A lot of immigrants (if not all/most) can be seen abusing social welfare.
Also slightly related is what is happening in Briton w.r.t brexit. Brexit was welcome by many Britons also for this reason.
i remember reading immigrants (in austria) on average pay more into the system than they get out, because most of them are relatively young and thus still healthy.
https://translate.google.com/translate?sl=auto&tl=en&js=y&pr...
Systems like these can be susceptible to abuse and this should be researched and prevented as much as possible but this attitude that any free health care receiver is to be treated with suspicion and distrust till proven innocent is not healthy, sorry for the pun.