I don't understand why regulating big tech is ideal. Isn't it more ideal for the government to run their own social media, or to have Twitter/Facebook deals tha

I don't understand why regulating big tech is ideal. Isn't it more ideal for the government to run their own social media, or to have Twitter/Facebook deals that provide a white label version of those services exclusively for government use? I feel like either of those approaches would accomplish a similar goal with fewer compromises than regulation would entail.