martes tore out some of them in the past week. It's lot of work. I just tore out 80% of the ones in the remaining front yard and on the side of the garage. Filled up the trash bin and threw a bunch of it over the back wall. Then I gave up, it's too much work.
Fortunately we live in a duplex, and the other side of our house contains people in the landscaping business. I hired them to come over on Halloween (of all days - but that's when they are available) to take the rest of it out for me.