Working in the us is difficult for citizens of most countries. While there is treaty relations us/Canada/Mexico facilitating work, employment visas are require

Working in the us is difficult for citizens of most countries. While there is treaty relations us/Canada/Mexico facilitating work, employment visas are required: H1b or “expert” or “company transfers”. This takes time and effort and money which companies might not want to expend. Even in the era of remote work companies need a tax nexus to handle workers.