Remaining questions for Marx

In theory, Communism sounds like a nice idea. However, it would never work if implemented in an entire country. One question I still have for Marx would be how he would go about filling all the necessary, but perhaps less desirable job spots. Marx asserted that if people were allowed to fulfill their passions work would get done. I am not arguing this. If individuals had the opportunity to pursue their interests, whether they be writing, acting, painting some work would get done, namely new books would be written, new movies would be made, and new paintings would be painted. However, unfortunately new books, movies, and paintings do not run a society. Sadly, it is necessary to have people working on assembly lines, disposing of garbage, and cleaning restrooms. Without these ‘menial jobs’ our society would not function. There would be very few goods being produced, as most require the use of the assembly line. Garbage would pile up and pollute cities and towns. Likewise restrooms would become health hazards. Marx believes that there would be people who would remain in these jobs because they are happy with them, or perhaps they would do it for the benefit of society. First of all, it is impossible that every garbage disposal person views their job as his/her passion and if presented with the option, all would choose to stay in their jobs instead of pursuing an interest he/she might have. Likewise, in regard to Marx’s second statement regarding continuing to work out of an altruistic action, I also do not believe this is realistic. Unfortunately, not everyone is willing to work in what might be considered a menial job all day every week for the benefit of the greater good without some sort of further personal gain. Secondly, how would these jobs be appropriated? Who would decide who becomes the janitor and who becomes the man or woman who works in a cubicle all day? Again not many would be willing to volunteer, thus someone would have to divide up these jobs. The problem, however, then might arise when trying to decide who has the skill or the physical capacity to carry out some of these jobs. In addition, since all of these jobs clearly must still be done in order to keep our society running, when will there be time for people to pursue their passions. These jobs take time, and to properly perform these jobs I don’t believe that it would be possible for everyone to have the time to pursue their interests. How would the time ratio then be any different from what Marx is proposing it is in a capitalistic society? Because of all of these problems that I see, it would be impossible for communism to be implemented upon an entire country. I’m not sure how Marx would reason this is possible due to all of the evidence presented against this idea, and especially because of all the countries that have tried and failed in the implementation of communism. Finally, the question still remains, how would Marx propose to fill the jobs that people don’t have a passion for and won’t do even out of altruism for the greater good?