The question you have to ask yourself is:
If you are doubting sciences, in what can you believe to understand and having the most objective opinions about the world ?
Science is various and complex. It's not one single thing and it's not a A to Z practice. Mathematics, biology, cosmology are sciences and disciplines of sciences, but Human sciences, archeology, history or Sociology are science as well. Reproductibility is not necessarily the panacee of Sciences, it's much more complex than that.
I can understand you if you are a bit suspicious when you see all leftists praising human sciences. But you need to understand the reasons for this phenomenon.
Progressism and the understanding of reality are deeply related. It has been the case for the entire history of mankind.
So, it's logical that science would be pushed by progressists to understand more about our specie. Science went so far that it's now starting to understand even the reason behind the failure of our own system.
You live in a society that makes you believe that we listen to scientist. But in reality, we do not. NEVER. The three most shining example of that are:
- COVID > Scientists warned every government and were not listened correctly.
- CLIMATE CHANGE > Scientists are warning everyone that our civilisation is about to take a deep slap in the face, no one listens.
- CAPITALISM > Scientists are showing how capitalism breaks people lives and no one is listens.
If we were in a world where politics in power listened REALLY to scientists, we would probably live in a very different kind of society. So, when you are doubting Science because you think that somehow, politics are trying to blinds you with it, never forget that...
People in power do not care about science at all.