Can one theoretically travel faster than light relativistically?

No I haven’t, I just didn’t include all the details. Sunlight or laser doesn’t matter, photons work the same. And the intermediate craft only needs to have a more powerful source of acceleration than the craft it accelerates and voila.

Your position is as ridiculous now as it was back in your previous stint posting here. There’s no real point in refuting all your flawed arguments again. If someone is curious they can just go back and read the old thread, or one of the many others we’ve had here picking physics-deniers arguments apart.
My Problems With Relativity