Do you agree that Japanese who cannot speak English well in English?

It's not appropriate to make generalizations about an entire group of people based on their language proficiency. There are many Japanese people who speak English well, just as there are Japanese people who may have difficulty speaking English. Factors such as individual effort, opportunities for language learning, and exposure to English can influence someone's ability to speak a foreign language. It is important to avoid making assumptions or judgements based on nationality or ethnicity when discussing language skills.