They built a nice new field with a wall around it and guards at the gates. The old open field with all the weeds and litter is still there.

Googles field is also full of weeds, and litter.

And it's guards are fairly inept.

But it’s the field everyone plays on. What are you going to do. Play by yourself?

I'm not sure how that's relevant to the point that Google Play is full of malware.

So your complaint is that Google produced a better product? Or are you implying that Google is poisoning all other ecosystems?

Your argue would not stand a chance in court. If a shoppingmall allows sellers to sell products in their shopping mall and suddenly the shoppingmall would dispel certain sellers resulting into a dispute then the normal us law system will apply.

A shopping mall has opportunity costs (limited availability of space, location, infrastructure needs) that computer based "malls" don't.

It's real easy to contrive clever little gotchas in fluffy language talking about "playing fields" but what is it that you think they've done?

Even accepting your premise that there is no longer a "level playing field", there's no legal reason to expect Google to help you publish your app anyway. Hence they have not taken or vioated any rights you think you have.