Airplane Talk, Why are Swing Wings not used anymore?

Ever wonder why so many Fighter and Bomber during the 1970's and 1980's had Swing Wing tech and why it was not incorporated into morder fifth Gen aircraft?
Tu-22 Backfire https://www.tupolev.ru/en/planes/tu-22m3/
Tu-160 Blackjack https://www.tupolev.ru/en/planes/tu-160/
Panvia Tornado https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/198063/panavia-tornado-gr1/
Su-22 https://aeropedia.com.au/content/sukhoi-su-22/
F-14 Tomcat https://www.popularmechanics.com/military/aviation/a35099818/how-f-14-tomcat-fighter-became-bombcat-bomber/
F-111B https://usaf.com/plane/f-111

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