Varieties of criticism
Conservative criticism has nothing much to do with "left-wing" or "right-wing", because left-wing people are often very conservative, in the defined sense, while right-wing people can also be very radical, in the defined sense. The difference between "radical" and "conservative" has more to do with the belief in whether "a change to something genuinely new" is really possible and necessary. Radicals typically believe strongly that such change is highly desirable and necessary, and that it can be achieved. Their criticism is that there is "not enough" change. Conservative critics, by contrast, are very skeptical about any such change, because they feel the change is really "just another form" of something that already exists.
Political positions of the Democratic Party
The Democratic Party is one of the two major contemporary political parties in the United States. The party describes itself as supporting American liberalism and American progressivism. The party incorporates centrists liberals and progressives, as well as more left-wing or socialist movements, many aligned with the presidential campaign of independent Senator Bernie Sanders. There is also a small Conservative wing represented in the house by the Blue Dog Coalition, although Conservative Democrat ideology is different from the traditional Conservatism the Republican party supports. Policies of past Democratic platforms have sought to protect social programs, labor unions, consumer protection and workplace safety regulation, equal opportunity and racial equality, and regulation against pollution of the environment. Democrats support abortion rights and same-sex marriage, tend to support an easier pathway to citizenship for illegal immigrants.