How can regulations kill the bullishness? Stock markets are much more regulated than Bitcoin, and big tech giants like Facebook and Apple are almost always at their ATH because they keep growing and growing. If it were like you say and the whales could no longer manipulate the market, it would be a good signal to investors and the price would grow in long term and eventually reach a new ATH.
ETFs, futures trading, and Bitcoin forks (BCH, BSV, etc.) could've had an impact over Bitcoin's price.
Those things have zero long-term impact on Bitcoin's price, and even in short term they are barely noticeable.