Farming always has been dirty and bloody. It is maybe more cynically bloody because we use ways of killing animals directly taken from extermination camps, and maybe eating meat nearly every day is not worth it.

And there is no such thing as "way of progress" unless you say history has a goal (set by god?). Progress depends on many factors amongst which technology (otherwise our "progresses" in killing technology would have already eradicated humanity). Technology is a tool with a lot of complex implications: sadly, it is more often used to free powerful people from their dependence on dominated people than the contrary.