I agree. It's extremely important that free speech within the House be preserved. That is clearly essential to proper functioning of the House.
At the same time, if you had quite a narrow definition that only prohibits offensive speech that is demeaning a member on the basis of their sex or race or another prohibited ground, I think as long as the definition were clear enough, that this would only prohibit the kind of speech that would never in any way advance a discussion even of difficult topics, because it would be a slur or something of that type.