I think the problems with Creation Science are well overstated in the posts here with the possible exception of AZPaul3's comment. Nobody cares what Creationist think, and generally when even a prominent US official rants about the earth being only 6000 years old, or the theory of evolution being a plot from Hell, the ridicule seems to land only on the ranter. There are plenty of counter examples to the idea the Americans are idiots. At least at present.
And so far, at least, there hasn't been much of a problem keeping Creation Science out of public k-12 education, and ghettoizing it to home schools and Bible Colleges.
Until that changes, Creation Science does most of its harm to the cause of the advancement of Christianity. It is generally harmless to America.
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
I believe that a scientist looking at nonscientific problems is just as dumb as the next guy.
Richard P. Feynman
If there is no struggle, there is no progress. Those who profess to favor freedom, and deprecate agitation, are men who want crops without plowing up the ground, they want rain without thunder and lightning. Frederick Douglass