Are altcoins like stellar and xrp harming the bitcoin price by their manipulated pumps ?
There is no such relation between XRP and Bitcoin price as xrp is more overly have centralised control with unlimited supply of token which make it more likely to be a shitcoin. Every days it goes 10-15% long short which defines its unstableness in crypto market. Bitcoin in grandfather as compare to xrp in all senses
And that stops there, XRP won't go farther beyond what Bitcoin can do or even for Ethereum.
What I see is just a hyping control of the owner. It was a big surprise that XRP rally such a percentage, no one is expecting that stance for this season because it was not a normal scenario for XRP. And agree that it won't make Bitcoin to dump as it was not attached to it.
Do they have a different platform, decentralized, and centralized market? And no way to think that it affects both of them, what we saw was just a coincidence, no string attach.