You've got it backwards. Vatican II is heretical, and any cleric who promotes heresy (which includes every "Pope" since Pius XII) is stripped of office by matter of law (Canon Law of 1917, 188.4). Consequently the Canon Law of 1983 which attempted to neuter this (194) is also invalid, so 1917 remains in force.

Beyond the Vatican II and Novus Ordo heretics that leaves the Recognize & Resist faction (SSPX/etc.) which would be schismatic by definition if Vatican II and/or those popes were valid, which they aren't, so R&R is both illogical and heretical.

Therefore the only true Catholic clerics and parishes are those which entirely reject Vatican II and by extension the heretics that have occupied the Vatican since Roncalli's fraudulent election in 1958.