Yep, the same flack thrown up each time.

Newton: Mass -> Gravity
Einstein Mass -> space distortion -> Gravity

Yeah... so Gravity is a product of mass in each schema.

Light, as a photon is really silly.
Try to compute the number of photons a star has to put out so that one of them strikes earth.
Assuming photons are evenly distributed in both planes, 360°.

If light is a photon, than we shouldn't see stars.
But wait. In space, you can't see stars.
High up on a mountain, stars are quite faint.

Anyway, all of this is out there, put together in packages much better than i can write a reply.
So go investigate it.

All i can say, so you do not say the obvious rebuttal:
I have more college classes in the hard sciences than anyone i know.

And yes, all of it is garbage that i had to unlearn.