Welfare rules were changed, but not by Ronald Reagan. It was Bill Clinton that signed welfare reform in 1995 thus ending welfare as we 'knew' it.  
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As far as liberal's supporting gangs. How do you suppose the gangs support themselves?  Drug dealing is their primary source of income.  Every single liberal running for mayor in Seattle supports 'safe drug injection sites'.  The city, or county, will not provide the drugs, only a safe space to 'shoot up'  their drug of choice. Where do you suppose they'll get that 'drug of choice'?  That's right!  Liberals do support gangs and there's  your proof!      BTW  if the Norway rat is blushing its because even he's ashamed at  what liberals are doing.. 
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Conservatives are only trying to save a system that is hell-bent on self-destruction. Sometimes I wonder if its even worth it. Then I look at my grandchildren.