Rationally speaking, the Bitcoin halving cannot affect the market price at all.

The only thing is how powerful is the market consensus? I guess it won't be very big, just like MEME coins without bookmakers often can't go far.

Bitcoin earns only 1/6 of ETH from transaction fees. In the longer term, ETH's protocol revenue will further grow, but Bitcoin miners cannot earn more from the protocol, so how can their position be stabilized?