Saying “nearly every important thing has been invented by men” is simply ignorance.
As @Sustainbrain points out for centuries women were excluded from universities, scientific institutions, funding, and patents. Despite those barriers, women still invented and discovered things that changed the world.
Examples include Ada Lovelace (the first published computer algorithm), Hedy Lamarr (technology that underpins Wi-Fi, Bluetooth and GPS), Stephanie Kwolek (Kevlar), Josephine Cochrane (the dishwasher), Mary Anderson (windshield wipers), Grace Hopper (the first computer compiler), and Marie Van Brittan Brown (the home security system).
There are also cases where women’s work was credited to men, such as Rosalind Franklin’s crucial role in the discovery of DNA’s structure, Jocelyn Bell Burnell’s discovery of pulsars, and Lise Meitner’s work on nuclear fission.
And even if some inventions were made by men, that doesn’t mean men today get a lifetime exemption from housework or childcare. The achievements of a few individuals don’t justify unequal expectations for everyone else — partnership means sharing responsibilities.