Underwater cables are quite easy to repair and are designed with splicing and easy repair in mind. Cables generally are laid in littoral or shallower water routes, have simple replaceable parts, are immune to elevation changes and the weather, they can flex and move quite a bit, and require very little maintenance. When the remote Faroe Islands for example saw their underwater internet cable cut in two different places, it was fixed in about 3 days.

Underwater pipelines are quite difficult and expensive to repair, they require pumps, compressors, an enormous amount of maintenance, expensive specialized parts, mounting brackets, can't move, and can only be laid in really specific routes with perfect conditions. In Nordstream's case, after 3 of its pipes got blown up, they depressurized and were filled with saltwater destroying many kilometers of all 3 pipes.

We've had transoceanic telegraph cables, phone cables, and internet cables for a long time. The biggest saboteurs of these cables so far have been ship anchors getting stuck on them, or fish nets in littoral waters. Modern cables are buried deep enough in the floor to avoid both. Geopolitical risks are always there, and these are mostly an issue with fossil fuels because of where they come from. The majority of gas/oil produced comes from dictatorships. Their gas/oil giants never underwent anti-trust like much of the west did, in our case Standard Oil, which eventually became all these companies:

So for the countries never undergoing anti-trust of their energy (really an economic base layer), all that power and wealth never distributed and centralized in the hands of single families, or got nationalized, accumulating in the hands of a single dictatorship or despot.

You can't turn off the sun, wind, or earth's core though, and thankfully, bitcoin uses electricity.