EDIT, I'm being rate-limited, so I'll respond to the below here:
No, there is very clear negative correlation between economic growth and government spending levels:
https://web.archive.org/web/20170821004405/http://ime.bg/upl...
Calling it "wild speculation" is disingenuous given social welfare spending's well documented negative impact on economic efficiency, and the basic economic theory that predicts this outcome.
>>there are overwhelming examples of entitlement systems that are solvent and functional despite a level of free ridership.
The most commonly cited example, Scandinavia, shows the opposite of what's popularly believed:
https://iea.org.uk/publications/research/scandinavian-unexce...
>>Stop holding back progress with unconstructive and uneducated critiques of iterative improvements to the social safety net apparatus.
Stop taking it as a priori that any move toward your preferred economic system; social democracy, is progress, and any one who questions it is being "unconstructive and uneducated". It's a very emotional/unconstructive attitude to bring to a discussion of such importance.