1. In most countries, the people who complain about such and such group being on welfare, are usually motivated by bigotry towards the group. Racism and prejudice is the issue, and most bigots are hypocrites (as well know very well).
2. A serious problem develops in society’s with a liberal “welfare” state in that many individuals are content to live off their “entitlements”. This is becoming a very serious problem in Europe.
3. If you defined “employment” the way it is done in America, there would be almost no unemployment among Israeli hareidim. In the US if someone is part of a university community, and is receiving more than merely a waiver of tuition plus room and board, the person is considered to be an employee. By this standards, most members of kollels, even if they have no teaching or administrative responsibilities, would be considered to be employed.