I may agree with you, This can create uncertainty and worry among investors, which can trigger asset selling and depress prices in the short term. But my view is that the long-term impact of any SEC ruling, however, depends on how regulation proceeds and how the market and the crypto community respond to it. There may be efforts to find solutions and partnerships that benefit both parties.
Other thing is that if SEC win I am worrying that the rule with more more countries because a lot of US rule also that been widely using by other country, and if this happen Crypto that supposed to decentralized will become centralized