Those making that study are clearly idiots.
Welfare simplified: The government takes $10 from someone producing something that generates wealth. They use $2 of that to pay people to take and redistribute it, generating nothing. The other $8 they hand to someone who can then spend it in a multitude of ways that doesn't generate any wealth. The net result is a drain on wealth, not a multiplier of it.
The reason for that is, the $10 could have been spent by the one generating it to the same effect, or in part reinvested to generate additional wealth. Redistribution is not a wealth generator.
There, fixed that for you. The Left are the ones that invented Socialism and its more virulent cousin, Communism. They are the ones that suggest that wealth is finite and that redistribution of that finite wealth is morally justified. The non-Left recognizes that wealth can be generated and increased in amount. It isn't fixed. The Right came up with the concept of Time Value of Money too.
Sounds as though you comment to Glider went right over his head.
He obviously is not the sharpest tool in the shed.