That's a heretical opinion. No wonder you don't evangelize. Your sect is dying and deserves to. How many are there in your ultra-rigorist sede sect? 50,000? Maybe even less. The future belongs to real Catholics, including Millions who are evangelizing as we speak, and the Church is growing.
Firstly, not every one who believes that the new rites are invalid is a sede. Secondly it's not heretical. Pope Pius 12th defined the form for consecration of bishops, V2 changed that form which makes it doubtful with a positive doubt. The Church teaches that doubtful sacraments must be held as invalid and you cannot unless receive in danger of death. Also the new rite of ordination for priests has the same issues as the anglican rite, which Pope Leo 13 condemned as utterly null and void, citing their internal intention by judging the external changes.
Real Catholics are those who follow what the Church teaches and not the false concillar vatican 2 imitation of the Catholic Church.