As someone has once said, “You can put lipstick on a pig, but it is still a pig”, the same with the term “Democratic Socialism”, it is still “Socialism” no matter how hard you try to dress it up. Socialism has been tried for many years in many different countries and it has failed no matter where it has been tried. Where do poor oppressed people want to emigrate to, socialist countries or capitalist countries? You don't see too many people trying to go to Cuba or Venezuela in our hemisphere, do you?
Socialism is basically the government being the primary method of determining how people live and work. The concept of individual liberty is shunted aside and in its place comes government control. It is the capitalist countries that have been the most prosperous with a higher standard of living than anywhere in the world's history. Socialism, which promotes equal outcomes for all people, just doesn't work as the incentive to succeed is lacking and put down by the heavy hand of government.