No, counting the people who were attending Mass at the time of Vatican II, 80% have voted with their feet to reject Vatican II and all it stands for, most especially the atrocious "New Mass." And those who still go are generally very dissatisfied with the state of the Church. One would be a lot closer to the truth to say "Vatican II has been universally rejected except by a small coterie of liberals, especially in the hierarchy, who are quickly dying out, thank God."
How do you account for the one billion Catholics who belong to the Church today?
Your interpretation of the situation is, of course, your interpretation.
The number of people who attend the Tridentine Mass in the United States is less than a million; the number of Catholics is over 62 million.
Catholic archdiocese of Washington [D.C.] has largest ordination class in 14 years
Roman Catholic friar community growing
Retiring priests pose problem for the Archdiocese of Boston
Church Is Still Attracting Converts
Former Anglican priest ordained Catholic priest in San Francisco
Planted in tradition Orthodox churches are gaining presence, members amongst Protestants
AM - Anglican clergy defect for Catholic Church
Archdiocese has active, engaged laity (Archbishop Burke article)