The Road to 2020 - American Elections That’s easy to say when the power would be consolidated under the candidate you prefer. It’s not a strategy so much as it is simply complaining that you are not getting the votes you want. — NOS4A2
No, it's easy when there are clear and notable ideological and policy overlaps between the two, and only one has a viable path of victory in the primary that was very clearly reflected in the polls for the last several months, which then, surprise surprise, played out last night. You're a fan of Trump, so I understand how you can only perceive politics as a sort of reality TV game show in which voters are only interested in candidates irrespective of any policy, but in fact many voters actual care about primarily about policies that affect their material well-being and vote based on which candidate promises to enact those policies.
According a recent
Morning Consult poll 40% of Warren supporters name Sanders as their second choice (35% of Sanders supporters name Warren as their second choice, which makes sense because she's nearest to him policy-wise). Let's assume that increases to 50% had Warren dropped out and endorsed Sanders on Monday night, as the other moderates did for Biden (apparently not a strategy?). Had that been the case, it's quite likely that Sanders would have won Texas, Minnesota, Massachusetts, and Maine instead of Biden.