I think you mean order of magnitude, which means 10x. Magnitude just means size. Chrome's market share is not an order of magnitude higher than Safari.
So instead of "10x" substitute "by a large enough factor or margin to make a significant difference". That is totally true globally speaking. Locally, in the US, you could however argue that apple abuses it's iPhone market share to sabotage competition (e.g. streaming, webstandards,etc). That just means you should sue both not neither.