If you can't be bothered to communicate clearly then you have expressed a lack of interest in being understood clearly. If you don't want to publish in English then don't publish in journals that require English.
In a world where there's always more stuff to read than time available to read it, signals of diligence and competence are important if you want to be taken seriously.
Are you judging them in their English because you dont have the skills to actually judge them on the merits of scientific work?
Why should all of society lose on scientific progress just to appease your linguistic sensitivities?