China and the United States have different approaches to operating and engaging with other countries. It is important to note that any discussion regarding China's activities should be based on factual information and balanced analysis.

When it comes to debt, it is not accurate to attribute this solely to China's actions or intentions. Countries around the world, including the United States, borrow money from various sources for development projects, infrastructure, and other initiatives. Debt can be a complex issue influenced by multiple factors, such as economic policies, governance, and financial management.

It is true that some countries have entered into loans with China for infrastructure projects that have faced challenges or have not lived up to expectations. In some cases, projects may not yield the expected benefits due to insufficient demand or other issues. However, it is essential to examine each case individually and consider multiple perspectives before making sweeping generalizations.

Regarding loans going back to China, it is crucial to remember that debt repayment is a standard practice between lenders and borrowers. Loans typically come with repayment obligations, and the money is not "taken back" by the lender. Repaying loans to any country or institution is a standard part of maintaining financial credibility and stability.

Furthermore, it is common for infrastructure projects to involve a combination of local and international expertise. Contracts may be awarded to companies that have the necessary skills and experience to complete the project effectively. While it is important to prioritize local employment and economic benefits, it is not uncommon for specialized workers, including engineers, to be brought in from abroad for large-scale projects.

It is important to approach these discussions with a balanced perspective, considering the broader geopolitical context, economic impacts, and the responsibilities of all parties involved. Building a comprehensive understanding of the subject matter is crucial to avoid presenting a biased or one-sided view of complex issues.