On what grounds a business should not be allowed to buy another unrelated business?
These are subsidized across unrelated business unit profit, enforce the moat of these businesses, and create substantial barriers to entry for businesses across all sectors, including entertainment businesses.
It's really weird that my grocery store is producing Lord of the Rings, selling me the router and TV with which to watch it, and shipping it to me.
Or that the device I use to pay for dinner pops up a notification for Ted Lasso, which also gets prime real estate across several screens that all cross-sell first party experiences.
We've strayed really far from the regulations that produced dealerships and mandated that movie studios couldn't own theaters. Now these companies own everything and can force your hand on distribution and marketing.