I reject the notion that Ramaswamy would make Brown clearly favored. Quite frankly, there's no Republican who wouldn't be likely to defeat Brown next year. Look at 2022.
2022 was a Biden midterm. It’s not at all unexpected that Democrats lost the Senate race. Acting like a state that the Democrats lost by 6 in a Democratic midterm can’t be won by an incumbent is idiotic.
Brown might honestly be an underdog here, but “Look at 2022” is a pretty terrible argument for that position. Either way I can’t see rating this race worse than lean R at this point.