As to subsidies, governments are pushing ev's harder and harder. The EU has continually-increasing fleet standards that can be met only by adding more ev's, and China has continually increasing ev production standards. Ev sales are going to keep increasing, and Tesla makes the best ev's. Sales, revenues and profits are going to keep going up.
Companies are rarely production constrained. Many claim they are, but the fact that Tesla sales in their two largest markets declined doesn’t indicate to me that production is their number one issue.
The nice thing about this disagreement we are having is it will be settled by what happens in the next year. I say Tesla's sales will go up strongly now that it has another factory. I take it you think they won't, and all that new capacity will go unsold.
And I would say Tesla’s revenue growth will start to flatline, yes, as the last two quarters have shown.