"Do you believe that Einstein's theory of relativity and Bohr's quantum mechanics can coexist?"

I am certain sure that both theories are only partial descriptions of what is actually happening, at best. I think the phenomena we observe will be better described by a theory that encompasses what both the theories you mention are attempting. Because they seem to be mutually exclusive, but both kinds of phenomena demonstrably do occur in the one universe we are in, I am certain the Theories of Relativity and Quantum Mechanics are both incomplete, and reality is likely to be better described than we can presently undertake by someone smarter than me.

"I guessed that you trust Einstein's theory of relativity more than Bohr's quantum mechanics!"

I find it easier to grasp. It is easy to observe that our positions and conditions are relative, that there is no single point from which all can be measured simultaneously. Quantum emergence from the vacuum pressure isn't so obvious, and can't be observed with only Mark I eyeballs, but requires having confidence in our ability to explain seemingly random events, changes in how events occur depending on whether we are watching them or not, and similarly esoteric explanations. Not until I realized that the consciousness we are part of is the prime mover of all physical matter, energy, and events did Quantum Mechanics begin to avail me, or approach that, some confidence in understanding, was I less uncomfortable with quantum theories. If I could count to 20 with my shoes on understanding the very complex maths might help, but I can't do that math, so no such help is available to my meager understanding.

It is the presently ineffable nature of consciousness that lends me confidence most of all, because it's not just me that doesn't understand this stuff. No one understands it, and we're all speculating about the nature of consciousness and what that means for Quantum events, and macroscale physics like the expansion of the universe.

Thanks!