Let me break this down for you by examples.
Person who is able to work but doesn't want to and is too lazy should get off the couch and go job hunting without a chance to abuse the system. You don't get to quit your job, do nothing and make no effort to work whatsoever.
Yes you do. People do it all the time. That's the problem here.
Person who wants to work, but is unable to find work, gets laid off, is disabled and thus physically incapable to do work,
We take care of those who are truly disabled, and many who are not disabled but claim to be.
Unable to find work? There is all kinds of work out there. In my industry, we need over 60,000 drivers that companies can't find. They are turning to foreigners who can't read or speak a word of English to come here and take these jobs Americans don't want.
person who has fallen on tough times
Such as? Everybody should be prepared for tough times.
person who is working a job, maybe two and still needs extra help,
Then is it income or spending that's their problem? How many kids do they have??
I don't mind and the government can afford it.
They can? Last I read, we were 20 trillion in debt and growing.