Defer Parsing Javascript Not seeming to Have Effect

Hi, for some reason using this plugin isn’t helping with the defer parsing javascript score on GTMetrix… I can’t for any reason get it any better than “F” 0.

https://www.youtube.com/s/player/4a1799bd/player_ias.vflset/en_US/base.js (1.2MiB)
https://www.facebook.com/rsrc.php/v3/yQ/r/_oFkA7FHRDd.js?_nc_x=Ij3Wp8lg5Kz (222.7KiB)
https://www.youtube.com/s/player/4a1799bd/www-embed-player.vflset/www-embed-player.js (121.9KiB)
https://www.facebook.com/rsrc.php/v3izfz4/y6/l/en_GB/p-IecSOYhb-.js?_nc_x=Ij3Wp8lg5Kz (68.4KiB)
https://www.facebook.com/rsrc.php/v3/yX/r/AcZLzOB7Nf0.js?_nc_x=Ij3Wp8lg5Kz (35.2KiB)
https://www.facebook.com/rsrc.php/v3/yc/r/gWO-28_iKWT.js?_nc_x=Ij3Wp8lg5Kz (21.5KiB)
https://www.facebook.com/v2.3/plugins/page.php?app_id=249643311490&channel=https%3A%2F%2Fstaticxx.facebook.com%2Fx%2Fconnect%2Fxd_arbiter%2F%3Fversion%3D46%23cb%3Df2ff8c7039c2048%26domain%3Dthegamingshed.com%26origin%3Dhttps%253A%252F%252Fthegamingshed.com%252Ff288e25bf8c7ef%26relation%3Dparent.parent&container_width=270&height=450&hide_cover=false&hide_cta=false&href=https%3A%2F%2Fwww.facebook.com%2Fthegamingshed&locale=en_GB&sdk=joey&show_facepile=true&small_header=false&tabs=false&width=340 (15.0KiB of inline JavaScript)
https://www.youtube.com/yts/jsbin/fetch-polyfill-vfl6MZH8P/fetch-polyfill.js (6.8KiB)
https://www.facebook.com/rsrc.php/v3/yh/r/4cIiPol996W.js?_nc_x=Ij3Wp8lg5Kz (5.3KiB)
https://www.youtube.com/embed/kf5oaKZcj-o?controls=0&rel=0&playsinline=1&enablejsapi=1&origin=https%3A%2F%2Fthegamingshed.com&widgetid=1 (2.5KiB of inline JavaScript)

Any help would be greatly appreciated.

Thanks

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