The only issue is that using kinetic weapons greatly increases the risk of Kessler Syndrome; in other words premature mutually assured destruction. Kinetic space weapons are so easy to get wrong with outsized repercussions.
Otherwise raising orbit is expensive(ish) depending on whether you want a circular orbit. Matching an orbit can be expensive. If the target has auto avoidance like Starlink does then matching orbit becomes war of attrition; even getting the target to burn off its fuel is a win as it will drastically shorten its life span.
Deorbiting is relatively easy at LEO, just increasing frontal area is a cheap way to achieve it. Above LEO would normally require fuel of some amount.
Otherwise raising orbit is expensive(ish) depending on whether you want a circular orbit. Matching an orbit can be expensive. If the target has auto avoidance like Starlink does then matching orbit becomes war of attrition; even getting the target to burn off its fuel is a win as it will drastically shorten its life span.
Deorbiting is relatively easy at LEO, just increasing frontal area is a cheap way to achieve it. Above LEO would normally require fuel of some amount.