We dont have that much supply, apparently the UK shut down its ability to store vast quantities of gas. Ditto we've failed to create great hydro electric storage, this is useful like a natural battery. So when USA comes to us with their excess gas we sell it pretty much because we have to, we receive then export it to Europe. We got soft and weak like Germany and got used to cheap excess from Russia, why compete.
None of this was unknown 2 decades ago its all old bs, China frequently drowns the market in cheap steel which we happily buy up. The problem it destroys our steel production companies, China then withdraws the cheap steel and raises prices on us. Putin is basically just a thug trying to turn a trick for more money, I can easily believe all of this has been just a big game of monopoly to him