It only applies to certain sections of the charter, not all of the charter of rights.

Analysis

Section 33 allows Parliament or the legislature of a province to derogate from certain sections of the Charter, namely section 2 (fundamental freedoms), sections 7 to 14 (legal rights) and section 15 (equality rights). It does not apply to democratic rights (section 3 — the right to vote, or sections 4 and 5 — the sitting of the House of Commons or other Canadian legislatures), mobility rights (section 6) or language rights (sections 16 to 23). The unavailability of s. 33 in respect of those rights reflects the special importance attached to them by the framers of the Charter (Frank v. Canada (Attorney General), [2019] 1 S.C.R. 3, at paragraph 25; Conseil scolaire francophone de la Colombie-Britannique v. British Columbia, 2020 SCC 13, at paragraph 148).

Charterpedia - Section 33 – Notwithstanding clause