You see it too one-sided, hotfix. Of course, the English-speaking market is more competitive. But you are also addressing a lot more potential new users. And that is a huge competitive advantage. It is not for nothing that by far the largest forums are all in English. One more thing about content: quality will always prevail in the end. In this way you create and guarantee added value and sustainability. Most of the really loyal and active forum users are a bit older. And with the values I have mentioned, you will bind exactly this target audience to you and your forum in the long term.