Please help Why do people hold on conspiracy theories, even when there is evidence that might prove them wrong

Typically those people dont trust the government, and feel the "evidence" could be fabricated. but let's say they do trust the government, when someone believes something heavily, they have hope in said thing. for example. their are some evidence to argue certain parts of religion, yet religion can also has evidence to prove itself to be real. I hope I explained it good enough.

a: that she is losing interest in her relationship with arobin just took !

i wish you luck on this question sorry i couldnt