Diversification is more like distracting yourself from the right direction, it’s one thing that gets people away from succeeding in bitcoin, what people do not realize is that time used in gathering shits put together in one direction which is bitcoin. they will be more successful than ever in life, even in other aspect of life you need focus to succeed.
It is always good we diversify our investments if we have the financial capacity to do it, and if we are diversifying our investments to real estate and commodities, we should do it when we have reached over accumulation or when we are very close to over accumulation in Bitcoin investment so that it will not distract us from Bitcoin investment since we will need to divide our discretionary income if we are investing in Bitcoin and real estate and commodities at the same time, and anyone investing in Bitcoin and shit coin at the same time is just distracting himself/herself and wasting the money he/she could have used to frontload his/her Bitcoin investment.
You are over stating the justification for diversification.
Sure there are some newbies who come to bitcoin and they are already wealthy or they have a variety of already existing investments.. so then maybe for those kinds of newbies, they might not need to sell any of their other investments to get into bitcoin, yet there might be some those newbies to bitcoin who would be better to reallocate some or all of their other investments into bitcoin.
The fact of the matter is that an overwhelming majority of people are relatively new to investing and so they do not need to diversify in other assets besides bitcoin and cash in order to get started in their bitcoin investment, including initially staying focused on building their bitcoin and strengthening their cashflow management systems and practices.
Perhaps once they get substantial funds in their bitcoin investment and their back up funds (such as a 6-12 months of their expenses), they might start to consider diversifying, and it may or may not be necessary to diversify, even at that point. Each person can figure out the extent to which they might want to balance out their bitcoin and cash with some other asset or assets...
So your proclamation of "always good" to diversify is very misleading, since it is not true and it could well take a person quite a long time, such as a few years to build their bitcoin/cash investment to such a level that it is starting to make sense to diversify out and the diversification might be more related to the cash portion rather than the bitcoin portion, since probably bitcoin should be the priority, even though guys have the right to prioritize however they like, even if they end up prioritizing in dumb ways.