International supply chains are resilient. Once the pandemic ends, countries and companies will likely revert back to how business operated prior to the existence of COVID-19. Transnational links, connected by a system of airplanes and other modes of transportation, are being eroded because international travel is not safe during a pandemic. As a result, many countries have stopped outsourcing their manufacturing and have instead turned towards domestic production to create jobs, prevent shortages, and become self-reliant.
Although doing so is more expensive, businesses recognize that it is necessary for the short-term if people want to keep their local economies afloat. The existence of capitalism as an economic system is not wholly contingent on the existence of global supply chains. Although these supply chains help to facilitate many of capitalism's goals, such as cutting unnecessary costs and manufacturing products as cheaply, quickly, and efficiently as possible, capitalism can ultimately survive without this- at least for the time being.
What we're currently witnessing in regards to businesses manufacturing their products domestically rather than internationally is only a temporary solution to the issue at hand. Once the COVID-19 pandemic ends, international travel will resume.
It is very likely that governments and businesses will take extra safety and sanitary precautions to prevent the outbreak of another virus because they have a financial incentive to help prevent further economic disasters. Capitalism is flexible and resilient- it is capable of adapting and changing alongside the needs and demands of consumers, who are now prioritizing health and safety over everything else.