King County has one of the highest minimum wages in the United States. There are several organizations giving out clean needles in King County. We are building new housing at a very rapid rate and many areas of the county were upzoned just this year so we can build even more housing.
To me your comment is asking for us to do more of what we are already doing, even though what we are doing is barely slowing the growth of homelessness. There is no amount of taxation on businesses the city, county and state can impose that will provide a home for everyone that needs it. This approach will not produce positive change.
Our national economy is a ponzi scheme, and our homeless are its primary victims. Until we solve the scheming, the homeless problem will only get worse.