Tesla's sales in Europe fell by 49% in April year over year, while overall battery-electric vehicle sales rose.Despite launching the refreshed Model Y, Tesla only logged 7,261 new vehicle registrations in April, nearly half of previous figures.Factors contributing to Tesla's falling fortunes include rising competition, Musk's political meddling, and unfavorable public opinion.Although Musk claimed to spend less time in Washington and focus on Tesla, the company faces challenges with no immediate fix in sight.