Tesla is still the big dog of the U.S. EV market, with a commanding 65 percent market share and the No. 1 spot among luxury brands, regardless of powertrain. But because of Tesla’s price increases over the past two years, it’s positioned itself mostly outside the mainstream, except for the base Model 3, analysts say. Tesla’s EV market share in the U.S. has fallen from 79 percent in 2020, and it is expected to fall below 20 percent by 2025, S&P Global said. For years, Tesla critics have been predicting the arrival of EV competition from legacy brands and rival startups — and it is finally here. Notably, the new…