You seem to have a lot of ideas based on your personal opinion that the Church prior to 1970 had the people just ‘sitting in Mass’.
I call bull. I was around. My 90 year old mother is still around. She calls bull on it as well.
She can still recite the Latin parts for the people. She knows what they mean, then and now.
Just because people in those times were expected (and the majority of them did what was expected) to experience Mass in a way which was more contemplative than the Mass today doesn’t mean they weren’t experiencing it at all.
Too many people seem to think that the ONLY way to ‘experience Mass’ is to be constantly talking, listening, kneeling, sitting, standing, singing. . .that there is no place for silence, for ‘listening’, for the senses other than sight and speech --for the senses of smell and touch. . .for peace, quiet, and for, dare I say it yes I shall–a personal relationship with God at one and the same time as one experienced a ‘community’ relationship with the others in the pews. Unity of posture and gesture and an understanding of why one did this gesture and not another. Attention not to constant sight and speech of somebody ‘in our face’ all the time, but to God, hidden and visible, in which the priest, who in the parts of the Mass devoted to specific intercession for us with the Lord, ‘led us’.
I’m not ‘cutting down’ the OF because I understand that there are parts which certainly do not contradict the EF and which could enhance it. For example, it is nice to have more Scripture, although having another reading at the EF would have been an easy fix. While I personally find at my parish the prayers of the people turning into a shill for the democratic party, again, adding in prayers specific to a particular congregation and its needs, provided the same is done with common sense and obedience, is something that could also have been added. Having the people more involved in singing is good (although having the chant as the documents of V2 called for would have worked in the EF as well).
Let’s see, what other ‘participatory’ measures are there today? EHMC. . . something that lasts for a few minutes. So maybe you have 4 or 5 people up there for a few minutes. Why couldn’t you have 4 or 5 altar boys instead, with a couple following around the priest and deacon, holding the paten underneath? Because you know, in the average church today, you find plenty of women in the pews still, and doing all the reading and the gifts etc. Who do you NOT find, across the board, across the US., in the majority of parishes? MEN. Go back to having male-only altar servers, keep women (and men) as readers, bringing up the gifts, saying the prayers of the people. . . and guess what, you will still have plenty of women and you’ll also have more men involved as well.